Nuwar.IB

It spreads and affects other computers.
It affects the productivity of the computer, the network to which it’s connected or other remote sites.
It spreads
, via email, through P2P programs.

Affected platforms:

Windows 2003/XP/2000/NT/ME/98/95

First detected on:

Oct. 31, 2007

Detection updated on:

Nov. 1, 2007

Statistics

No

Proactive protection:

Yes, using TruPrevent Technologies

Brief Description

Nuwar.IB is a worm that spreads by copying itself, without infecting other files.

It affects productivity, preventing tasks from being carried out:

In the affected computer:
causes system slowdowns.

In the local network:
it generates a large amount of network activity and consumes bandwidth.

Nuwar.IB uses the following propagation or distribution methods:

Exploiting vulnerabilities with the intervention of the user: exploiting vulnerabilities in file formats or applications. To exploit them successfully it needs the intervention of the user: opening files, viewing malicious web pages, reading emails, etc.

Email: sending emails that include a copy of itself as an attachment. The computer is infected when the attachment is run.

Peer-to-peer (P2P) file sharing programs: it makes copies of itself with enticing names in shared folders belonging to these programs. Other users of this type of networks then voluntarily download and run the infected files.